Tim Kietzmann

Tim Kietzmann

@timkietzmann.bsky.social

ML meets Neuroscience #NeuroAI, Full Professor at the Institute of Cognitive Science (Uni Osnabrück), prev. @ Donders Inst., Cambridge University

3.4K followers354 following122 posts

Tim Kietzmann reposted

We are excited! @initself.bsky.social & @rowansommers.bsky.social will present their **Umwelt Representation Hypothesis** at our next meeting. Sep 18, 11 am (CET) [Hybrid] Find the link to the online meeting here: www.cbs.mpg.de/en/cbs-coconut or join us at MPI CBS #neuroai #neuroskyence #ai

cbs.mpg.deCBS CoCoNUTCBS CoCoNUT: A new interest group that comes together every two weeks to have an informal exchange about cognitive computational neuroscience.
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Everything is ready for the third iteration of NEAT (Neuro-AI-Talks), starting tomorrow. New location, new workshop formats to explore.. I'll keep you posted! For the ~100 people making on their way towards Osnabrück: we are looking forward to having you over! #NEAT2026

Quick reminder that we are looking to fill a (tenured) full professor role in "Intelligence in Biological and Artificial Systems".

Tim Kietzmann @timkietzmann.bsky.social

📢 We are hiring a full professor in "Intelligence in Biological and Artificial Systems". Come join us at Germany's first and largest cognitive science program. Please share far and wide, and get in touch with any questions. www.uni-osnabrueck.de/en/universit...

Thank you for having me. Great event and an inspiring initiative!

Laura Dugué@lauradugue.bsky.social

The french network on computational neuroscience, #RTNeuroComp, had its first conference today! 2 great keynotes by Nancy Kopell & @timkietzmann.bsky.social. 4 round tables to discuss the current research challenges in computational neuroscience and the contour of the discipline + many posters.

Check out our new TICS article! We present an alternative take on the widely observed alignment between various AI models and human brain representations: the Umwelt Representation Hypothesis.

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We are hiring a full professor for "Intelligence in biological and artificial systems". If you don't know about the German system yet, let me tell you a little bit about working as a professor at the institute. Thread 👇

Tim Kietzmann @timkietzmann.bsky.social

📢 We are hiring a full professor in "Intelligence in Biological and Artificial Systems". Come join us at Germany's first and largest cognitive science program. Please share far and wide, and get in touch with any questions. www.uni-osnabrueck.de/en/universit...

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- our cognitive science program has the best students I can imagine - no joke. They are amazingly motivated and talented. - the IKW is home to MIND (Machine Intelligence, Neuroscience Discovery), a research initiative full of inspiring people, lecture series, and exchange. 4/

- Osnabrück is super safe, family friendly, and affordable, while the job is paid very well. - this position is open to more junior group leaders, too, and I'd love to encourage you to apply. Interested? Please apply or reach out if you would like to know more. /fin

We are hiring a full professor for "Intelligence in biological and artificial systems". If you don't know about the German system yet, let me tell you a little bit about working as a professor at the institute. Thread 👇

Tim Kietzmann @timkietzmann.bsky.social

📢 We are hiring a full professor in "Intelligence in Biological and Artificial Systems". Come join us at Germany's first and largest cognitive science program. Please share far and wide, and get in touch with any questions. www.uni-osnabrueck.de/en/universit...

- daycare in the state of Lower Saxony is free (you only pay a minor fee for food) - professorships typically come with positions for 2-3 PhD students and a secretary - constantly available to you until retirement. This is just such a privilege. 2/

- professors have access to excellent private insurance. - main language at the institute and teaching is in English. - teaching at the IKW is incredibly flexible w.r.t. content, schedule, format 3/

Tim Kietzmann reposted

Excited to share our new paper: "Probing the content of semantic representations in body-selective regions" We propose a framework based on object co-occurrence to interpret semantic representations of natural scenes predicted by LLM embeddings. doi.org/10.1162/IMAG...

doi.orgProbing the content of semantic representations in body-selective regionsAbstract. Recent advances in neural networks trained on natural language have revealed that category-selective regions encode complex semantics and contextual information of natural scenes in addition...

NEAT (Neuro-AI-Talks) is fully booked! We are happy for the great interest and are looking forward to welcoming you all to Osnabrück in September!

Tim Kietzmann @timkietzmann.bsky.social

Happy to announce the 3rd iteration of NEAT (Neuro-AI-Talks), which will take place in Osnabrück September 14th-15th 2026. NEAT is a (deliberately small scale) NeuroAI workshop that brings together researchers from neuroscience and AI. www.kietzmannlab.org/neat2026/ More information below 👇

Ever wondered why we fixate some locations longer than others? We initially thought that it had to do with recognition complexity, and were quite wrong. In Nature Neuroscience we present an alternative take: the need to memorise governs fixation durations.

Philip Sulewski@psulewski.bsky.social

Now out in Nature Neuroscience: "Fixation duration on natural scenes is explained by memory encoding not processing demand". www.nature.com/articles/s41... Our eyes don't linger because recognition is hard; they linger to remember. Let me take you on a quick tour. 🧵

Tim Kietzmann reposted

Tim Kietzmann reposted

This paper changed my mind on how visual processing works in the brain. We knew it was dynamic given all the recurrent connections. But I thought it would converge to a fixpoint during a fixation. Not so, it seems ... The dynamic captures different aspects of the stimulus at different times. Nice.

Tim Kietzmann @timkietzmann.bsky.social

A huge effort and a new take on what constitutes the "feedforward pass" across the visual system. Make sure to check out our new preprint:

Looking for robust AI vision? Then this NeuroAI paper may be for you 👇 Open access, open code, open weights.

Zejin Lu@zejinlu.bsky.social

Now out in Nature Machine Intelligence @NatMachIntell “Adopting a human developmental visual diet yields robust and shape-based AI vision”: doi.org/10.1038/s422.... A wonderful case where brain inspiration improved AI. With @martisamuser.bsky.social, Radek Cichy and @timkietzmann.bsky.social .

Tim Kietzmann reposted

A huge effort and a new take on what constitutes the "feedforward pass" across the visual system. Make sure to check out our new preprint:

Daniel Anthes@anthesdaniel.bsky.social

Excited about our new preprint: “The illusory simplicity of the feedforward pass: evidence for the dynamical nature of stimulus encoding along the primate ventral stream” arxiv.org/abs/2604.12825 Work with Sushrut Thorat, Anna Mitola, Paolo Papale, Peter König & Tim Kietzmann 🧵 thread below

A huge effort and a new take on what constitutes the "feedforward pass" across the visual system. Make sure to check out our new preprint:

Daniel Anthes@anthesdaniel.bsky.social

Excited about our new preprint: “The illusory simplicity of the feedforward pass: evidence for the dynamical nature of stimulus encoding along the primate ventral stream” arxiv.org/abs/2604.12825 Work with Sushrut Thorat, Anna Mitola, Paolo Papale, Peter König & Tim Kietzmann 🧵 thread below

Tim Kietzmann reposted

Highly recommended: I really enjoyed NEAT, every time I attended. Great opportunity to catch up on #NeuroAI, especially for those who can't make it to CCN!

Tim Kietzmann @timkietzmann.bsky.social

Happy to announce the 3rd iteration of NEAT (Neuro-AI-Talks), which will take place in Osnabrück September 14th-15th 2026. NEAT is a (deliberately small scale) NeuroAI workshop that brings together researchers from neuroscience and AI. www.kietzmannlab.org/neat2026/ More information below 👇

Importantly, NEAT has one central design rule: only research groups whose PI can attend in person can join. NEAT is deliberately small (80 attendees max) to encourage an open and relaxed exchange. NEAT takes place every other year, in particular whenever CCN takes place outside of the EU. 2/3

What a milestone 🤯. The institute of cognitive science in Osnabrück, the first of its kind in Germany, is now home to more than 1,000 cognitive science students across our programs. Wild.

Tim Kietzmann reposted

What happens if you hook up an energy-efficiency optimising RNN on active vision input? It learns predictive remapping and path integration into allocentric scene coordinates. Now out in patterns: www.cell.com/patterns/ful...

cell.comPredictive remapping and allocentric coding as consequences of energy efficiency in recurrent neural network models of active visionThis study gives an example of how complex computations in neural networks can emerge from simple physical principles. Training a model to optimize internal energy efficiency while performing eye move...
Tim Kietzmann @timkietzmann.bsky.social

Can seemingly complex multi-area computations in the brain emerge from the need for energy efficient computation? In our new preprint on predictive remapping in active vision, we report on such a case. Let us take you for a spin. 1/6 www.biorxiv.org/content/10.1...

Tim Kietzmann reposted

Excited to share my first paper: Model–Behavior Alignment under Flexible Evaluation: When the Best-Fitting Model Isn’t the Right One (NeurIPS 2025). link below.

Tim Kietzmann reposted

Replying to @avitanit.bsky.social

Our work reveals a sharp trade-off between predictive accuracy and model identifiability. Flexible mappings maximize predictivity, but blur the distinction between competing computational hypotheses.

Tim Kietzmann reposted

🚨 Out in Patterns! We asked ourselves, if complex neural dynamics like predictive remapping and allocentric coding can emerge from simple physical principles, in this case Energy Efficiency. Turns out they can! More information in the 🧵 below. I am super excited to see this one out in the wild.

Tim Kietzmann @timkietzmann.bsky.social

Can seemingly complex multi-area computations in the brain emerge from the need for energy efficient computation? In our new preprint on predictive remapping in active vision, we report on such a case. Let us take you for a spin. 1/6 www.biorxiv.org/content/10.1...

We went back to the drawing board to think about what information is available to the visual system upon which it could build scene representations. The outcome: a self-supervised training objective based on active vision that beats the SOTA on NSD representational alignment. 👇

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Hi, we will have three NeuroAI postdoc openings (3 years each, fully funded) to work with Sebastian Musslick (@musslick.bsky.social), Pascal Nieters and myself on task-switching, replay, and visual information routing. Reach out if you are interested in any of the above, I'll be at CCN next week!